Willy seck



(No Model.)

W. SEOK. EGGENTRIC OUTLET VALVE MOTION FOR GAS AND PETROLEUM ENGINES.

Patented Feb. 25, 1896.

l I win mums l r n/lunar UNiTEn STATES PATENT OFFICE.

IVILLY SEOK, OF OBERURSEL, GERMANY.

ECCENTRIC OUTLET-VALVE MOTION FOR'GAS AND PETROLEUM ENGINES.

SPECIFICATION forming part of Letters Patent No. 555,342, dated February 25, 1896.

Application filed July 8, 1895. Serial No. 555,223. (No model.)

T 0 all whom it Wtcty concern.-

Be it known that I, ILLY SECK, engineer, a subject of the German Emperor, residing at Oberursel, near Frankfort-on-the-Main, Germany, have invented certain new and useful Improvements in Eccentric Outlet-Valve Motions for Gas and Petroleum Engines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a new exhaust-valve gear for four-time gas and coal-oil motors.

The accompanying drawings, illustrating the novel device, show the same by Figure 1 in a partial section. Fig. 2 is a plan view, and Fig. 3 is a horizontal section, through the worm-wheel.

The eccentric 0r cam a, keyed upon the motor-shaft under suitable advance, is provided at its periphery with a number of skew-gear teeth-six, for instancewhich engage into or between the teeth of the worm-wheel I) having the double number of teeth. This wormwheel is arranged in the ring 0 of the eccentric, the latter being suspended in the frame in any suitable manner-for instance, on arms or links, as shown in the drawings. Said wormwheel I) is connected with a cam e by means of a pin cl, so that the revolution of the wormwheel produced by the skew-teeth of the eccentric 0, is transmitted to said cam e, which plays between the bars h h of the slide 9. The latter is movingin guides also secured to the ring of the eccentric and is provided with a pm 2.

It will be readily understood from the abovedescribed device that the slide g is moved to and fro only once during two complete revolutions of the motor-shaft. The cam e is so placed that the slideis at the end of its stroke when the eccentric a is in its high position. The slide remains almost stationary in the position shown and moves principally when the eccentric passes through the under half of its revolution. Thus the pin i evidently will strike the end of the valve-rodf, and consequently open the exhaust-valve only at every second revolution of the motor-shaft.

Having thus described my invention, I claim A valve-lifter composed of an eccentricring suspended below the valve-stem, to be 0perated, an eccentric having circumferential teeth adapted to operate in the ring, a vertical shaft j ournaled in one edge of the ring, said shaft provided at its lower end with a worm-wheel adapted to be operated by the eccentric, and at its upper end with a cam and a slide, adapted to be operated by the cam, said slide provided with an upwardly-proj ecting pin, whereby the valve-stem is operated, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

\VILLY SEOK.

Witnesses JEAN GRUND, ALvEsTo S. HocUE. 

